Compressor



Patented tpm il?, igiii iiihiiliit@ CARL W. VOLLlVIANll, OF MONTREAL, QUEBEC, CANADA.

'COTJIPRESSOR.

Application filed April 2S, 1921. Serial No. 465,349,

To all 'whom t may concern:

Be it known that I, CARL W. VOLLMANN, of the city oi Montreal, Province of Quebec, Dominion or' Canada, a subject of the King of Great Britain, have invented certain new and useful Improvements in Compressors; and l do here-by declare that the following is a full, clear, andexact description thereof.

This invention relates particularly to the mechanical compression of air or any gaseous fluid and has for its object to produce a compressor which will have greater capacity for work and consequently higher efficiency than other compressors oi"I the same size.

rlhe invention has for its object to obtain Yfrom a comparatively sinallmachine a relatively large.l capacity :for compression.

To this end the invention, broadly stated, consists in employing rotary action and converting the same directly into reciprocatory action without separate intermediate mechanism and within the same cylinder, the function of this combination of elements being to take in air or other gaseous iiuid and dis` charge the same under compression.

More specifically stated the invention consists of a unitary cylinder in which a reciprocatory piston is located and a rotary guiding member, each of these members having as an integral part one element of ya duplex cam mechanism adapted to mutual operation, the rotary member being provided with a shaft by which rotation may be imparted thereto from any available source and the reciprocatory member exerting compressive force upon the air or other gaseous iiuid automatically fed into the compression end of the cylinder.

For full comprehension, however, of my invention reference must be had to the accompanying drawings in which similar referenceI characters indicate the same parts, and wherein:

Figure 1 is a longitudinal vertical. secr tional view of my compressor;

Figure 2 is a similar View with the operating port in a different operating position;

Figure 3 is a face view of the cam end of the rotary member;

Figure 4 is a similar view of the corresponding end of the piston;

Figure 5 is a sectional view taken on line 5-5 Fig. 1; and Y Figure 6 is a horizontal sectional View taken on line 6-6 Figure l, the operating shaft being shown in plan view.

The cylinder l oi inykimproved compres., sor has intake port '2 and outlet port 3. The operating shaft is indicated at i and it has a rotary cylindrical member 5 which may be separately formed and rigidly connected thereto or an integral part thereof. The piston is indicated at 6. The contiguous ends of the rotary Vmemberand piston are provided with circumferential` cams 7 and 8 respectively and presented in one case by a projecting flange and in the other case by a set-back shoulder, these cam faces being disposed 'at corresponding angles in order that they may register and lie in contact with each other in one operating position and mutually cause separation of these contiguous ends in a diametrical opposite operating position. Thev rotary member is cham bered, as indicated, at l0 and has intake ports l2 in constant open communication with acircumferential chamber 110 formed by a concavity in the surrounding wall of the cylinder, such chamber ll() communicating with intake port 2, otherwisethe interior presents a closed chamber excepting for valve ports let. The piston is also chambeied as at l5 and has valve ports 16 and the interior of its lower side is formed with a guide-way 17 for ayguiding tongue 18 cast on or otherwise carried by the cylinder head i9. A cylindrical spring 20 tends to maintain the piston with its cam face in Contact with the cam face of the rotary member.

The rotary member andpiston are provided with piston rings 2l and 22 respectively and the end of the cylinder through which the driving shaft 4 enters is provided with a stuiiing boX 25 and ball bearing 120 ttor absorbing the thrust due to the compressive force; while the interior of the cylinder wall is formed with lubricating grooves 26 into which lubricant may be introduced in any preferred manner, and by which the shaft, rotary member and piston are lubricated.

@permitan The intake port 2 is connected to any available air or gas supply and the outlet port 3 to the accumulator yor other point. of distribution or storage. rihe rotation ot shaft fi and with it the rotary member 5 causes the piston 6 to move axially towards the port through the action of the engaging cam faces 7 and 8. During this moveq ment gas yis intermittently drawn from the port -2 into the interior of the rotary Imember 5 and through valve ports 14 into the space between the adjacent ends ot the rotary member and piston. Continuous rotation causes the release ci the cam .8 by cam 7, the protruding portion or rise oi' the latter registering with the depressionof the cam 8 as shown in Figure 2, and permitting thespring `and `back pressure or' `the-gas in port 3 to vreturn 'the' piston, thereby compressing the gas, lbetween the valvular ends otwthe rotary 'member land piston, until the accumulated pressure opens the valves i6. rheop'eration augments the .con'ipressed gas ink the compression end or the cylinder. During each revolution of the rotary inemberthe mutual operation `of `the cam Jaces projects the `piston towards the -port 3 and as the springI 2O and the baclr pressure oit the compressed gas lreeps the piston in bearing relation with the cam oit 'the rotary member and causes `it to yreturn to a position with `the `face of its valvular end in close proximity to the valvular end of the rotary member. VThe compressor is designed as a highspeed machine and the port l2 is designed to constantly admit gas.

.It will be seen trom the foregoing that with my improved compressor la simple member developing rotary motion is caused without separate intermediate mechanism to convert this rotary motion into `axial vreciprocal :motion andem'ploy this latter motion to compress air or other gaseous fluid. lNhat I claim is as follows:

l. A compressor-'for air and other gaseous fluid consisting of a cylinder having intake andr outlet ports'near its opposite ends, 'and' a cylinder head; such cylinder containing a chambered rotary member near one end and a chambered reciprocal compressive member near its opposite end, the chambered rotary member being adapted to receive air or other gaseous fluid from the intake port, valve controlled portsin one end of the chambered rotary member, the adjacent end or the compressive member having valve controlled ports, means whereby the rotation of the rotary member imparts -aXial reciprocal movement of vthe compressive member and means for preventing rotation of the recip.v rocal compressive member.

2. A compressor for air and other gaseous fluid consisting of a cylinder having intake and outlet ports near its opposite ends, and a cylinder head,and containing a rotary member near one end and a chambered reciprocal compressive member near its opposite end, a port in the chambered rotary member adaptedto, at times, `register with the intake'port, valve controlled ports in one end or" vthe chambered rotary member, the-adjacent end of the compressive member having valve controlled ports, cam mechathe nism whereby the rotation of the rotary member .imparts axial reciprocal movement to the compressive member and means for preventing rotation of the reciprocal compressive member.

3. .A compressor Jfor air and other gaseous fluid consisting of a cylinder havingintake ,and outlet ports near its opposite ends, and a cylinder head, and containing,` a rotary member near one end ,and a chambered reciprocal compressive member near its opposite end, a 'port in the ichambered rotary member adapted "to, at times, register with the intake port, valve controlled ports in one end ot the chambered rotary member, the adj acentend ot the compressiveamember having valve controlled ports, means wherebythe vrotation of the rotary memberimparts axial reciprocal movement to the compressive lmember consisting iol' coacting cam faces upon the said respective'adjacent'ends of the rotary yand compressive member and means for preventing `rotation of lthe reciprocal compressive 'member'.

4i, A compressor for airand other gaseous Huid consisting of a cylinder hav-inginlet and outlet 'ports near its opposite ends, and a cylinder head, and containing Aarcta-ry member near ciprocal compressive member near its oppoone end and a chambered resite end, a Iport in the c-hambered rotary l member `adapted to, at times, register with the intake port, valvey controlled ports n-'one end of the chambered rotary member, the adjacent endo'fthe 'compressivemember having'valve controlled ypor-ts,-the rotary inember having one end fof reduced I diameter and protruding towards the compressive member and surrounded .by an annular cam lface, and the adj acont-end of the compressive `member having an inset face and surrounding cam of annular ormeorresponding with the-cam oit the rotary member, means whereby the rotation of the rotary member impartsaxial reciprocal movement to the compressive member and vmeans :for preventing rotation of the reciprocal compressive member.

5. A compressor torairfand other gaseous fiuid consisting of a cylinder having'intalre and outletports near itsioppo'siteends, and a cylinder head and containing `rotary member near one end and a chambered lreciprocal compressive. member near its opposite end, a port in the chambered rotary member adapted to, at times, register-with the intakeport, valve controlled ports in one end of the chambered rotary member, 'the adjacent end of the compressive 'member having valve controlled ports, means whereby the rotation of the rotarymember imparts vaxial reciprocal .movement to ,the Acompressive member and means for preventing rotation of the reciprocal f compressive Y member consisting of a guidewayi formed in ithe interior side of the compressive member and retiree a fixed guide upon the cylinder head and engaging the said guideway.

6. A compressor for air and other gaseous uids consisting of a cylinder having intake and outlet ports near its opposite ends and a cylinder head at one end and stuiiing box at its opposite end; a rotary member registered with and in valvular control of the intakeport and in rotative connection with a driving shaft projecting through the stufiing box; the said rotary member being chambered and having a port adapted to` at times, register with the intake port of the cylinder and communicating with the chamber-ed interior, its opposite end being of reduced diameter and surrounded by and protruding through an annular cam, said protruding end having one-way valve ports communicating with and permitting outflow from the chambered interior; a chambered piston between the rotary member and eX- haust outlet port and having a projecting' annular cam registering with the annular cam of the rotary member and the end of the piston towards the rotary member having one-way valve ports permitting flow into the piston; and means whereby the piston is prevented from rotation.

7. A compressor for air and other gaseous fluids consisting of a cylinder having intake and outlet ports near its opposite ends and a cylinder headl at one end and stuffing box at its opposite end; a rotary member registered with and in valvular' control of the intake port and in rotative connection with a driving shaft projecting through the stutling box; the said rotary member being chambered and having a port adapted to, at times, register with the intake port of the cylinder and communicating with the chambered interior, its 'opposite end being of reduced diameter and surrounded by and protruding through an annular cam, said protruding end having one-way valve ports communieating with and permitting outflow from the chambered interior; a chambered piston between the rotary member and exhaust outlet port and having a projecting annular cam registering with the annular cam of the rotary member and the end of the piston towards the rotary member having one-way valve ports permitting liow into the piston; and means whereby the piston is prevented from rotation and consisting of a guide-wayT in the interior of its circumferential wall, and a guiding tongue carried rigidly by the cylinder head and disposed to engage the said guide-way.

8. A compressor for air and other gaseous fluids consisting of a cylinder having intake and outlet ports near its opposite ends and a cylinder head at one end and stuffing box at its opposite end; a rotary member registered with and in valvular control of the intake port and in rotative connection with a driving shaftprojecting through the stuffing box; the said rotary member being chambered and having a port adapted to, at times, register with the intake port of the cylinder and communicating with the chambered interior, its opposite end being of reduced diameter and surrounded by and protruding through an annular cam, said protruding' end having one-way valve ports communicating with and permitting outflow from the chamberc-d interior; a chambered piston between the rotary member and exhaust outlet port and having a projecting annular cam registering with the annular cam of the rotary member and the end of t-he piston towards the rotary member having one-way valve ports permitting flow into the piston; and means whereby the piston is prevented from rotation and consisting of a guide-way in the interior of its circumferential wall, and a guiding tongue carried rigidly by the cylinder head and disposed to engage the said guide-way and means for re- Ttlurning the piston towards the rotary mem- 9. A compressor for air and other gaseous fluids consisting of a cylinder having intake and outlet ports near its opposite ends and a cylinder head at one end and stuiiing boX at its opposite end; a rotary member registering with and in valvular control of the intake port and in rotative connection with a driving shaft projecting through the stuffing box; the said rotary member being chambered and having a port adapted to at times register with the intake port of the cylinder and communicating with the chambered interior, its opposite end being of reduced disameter and surrounded by and protruding through an annular cam, said protruding end having one-way valve ports communieating with and permitting outflow from the chambered interior; a chambered piston between the rotary member and exhaust outlet port and having a projecting annular cam registering with the annular cam of the rotary member and the end of the piston towards the rotary member having one-way valve ports permitting flow into the piston: and means whereby the piston is prevented from rotation and consisting of a guide-way in the interior of its circumferential wall, and a guiding tongue carried rigidly by the cylinder head and disposed to engage the said guide-way and means for returning the piston towards the rotary member consisting of a coil spring bearing between the cylinder head and piston.

ln testimony whereof I have signed my name to this specification in the presence oi' two witnesses.

CARL W. VQLLMANN. lllitnesses:

GORDON C. COOKE, WILLIAM il'. (l HnwnrsoN. 

